Pentax K-3 III vs Sigma SD15

On this page, we are matching up the Pentax K-3 III vs Sigma SD15, both Advanced DSLR cameras by competitors Pentax and Sigma. There is a substantial difference among the sensor resolutions of the K-3 III (26MP) and SD15 (5MP) but both cameras provide the same sensor sizing (APS-C).

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The K-3 III was launched 11 years later than the SD15 and that is a fairly big difference as far as camera tech is concerned. Each of the cameras have the same body design (Mid-size SLR).

Before we go right into a in depth comparison, here is a brief highlight of how the K-3 III scores versus the SD15 in the way of portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Pentax K-3 Mark III & Sigma SD15. The complete galleries are provided at Pentax K-3 III Gallery & Sigma SD15 Gallery.

If you are aiming to lug around your camera, you will need to take into account its weight and volume. The Pentax K-3 III offers exterior measurements of 135mm x 104mm x 74mm (5.3" x 4.1" x 2.9") with a weight of 820 grams (1.81 lbs) and the Sigma SD15 has sizing of 144mm x 107mm x 81mm (5.7" x 4.2" x 3.2") accompanied by a weight of 750 grams (1.65 lbs).

Compare the Pentax K-3 III vs Sigma SD15 in our completely new Camera & Lens Size Comparison Tool.

Always remember, the weight of an ILC will vary based on the lens you choose at the time. The following is a front view measurements comparison of the K-3 III and the SD15.

Looking at size and weight, the portability grade of the K-3 III and SD15 is 58 and 59 respectively.

Oftentimes, it is difficult to visualise the gap in sensor measurements just by checking out technical specs. The photograph here should offer you a far better sense of the sensor measurements in the K-3 III and SD15.

As you can tell, both of these cameras have the same sensor dimensions but not the same resolution. You can anticipate the Pentax K-3 III to provide more detail utilizing its extra 21 Megapixels. Greater resolution will help you crop photos a bit more aggressively. The newer K-3 III is going to have a benefit in sensor tech.